Model: 277WS2

Check Valve

Properties:

Pipe Size Accommodated

2.000 inches 1st end

Thread Direction

Right-hand 1st end

Flow Control Device

Disk

Renewable Seat Ring Type

Threaded

Connection Style

Plain, optional end (pipe) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded internal pipe 1st end

Connection Type

Threaded internal pipe 2nd end

Mounting Position

Horizontal

Thready Qty Per Inch (tpi)

11-1/2 1st end

Maximum Operating Pressure

300.0 pounds per square inch single response

Thread Size

2.000 inches 1st end

Material

Copper alloy 706

Media For Which Designed

Water-oil-gas single response

Style Designator

Straight thru

Thread Series Designator

Npt 1st end

NSN

4820-00-204-1890

Part Number

277WS2

Description

Valve,check

CAGE

63686

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part 277WS2 NSN 4820-00-204-1890

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05487

FIIG:

A530B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

127220

UFC:

64490

LTL:

77.5

LCL:

77.5

WCC:

594

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8481301090
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Check valves of copper having a pressure rating of 850 kpa or over